Syntheses, crystal structures and ESI-MS of mononuclear–dinuclear, trinuclear and dinuclear based one-dimensional copper(II)–s block metal ion complexes derived from a 3-ethoxysalicylaldehyde–diamine ligand

Hari, Nairita; Jana, Arpita; Mohanta, Sasankasekhar

doi:10.1016/j.ica.2017.07.033

Cited by 8 publications

(2 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the past few years, several research groups have carried out numerous studies on multi-metal-containing host–guest complexes based on salen-type ligands. ,,− ,− However, even though transition-metal ions have been widely used in combination with salen-derived ligands for multiple purposes, systems with alkaline-earth-metal ions were poorly investigated. , …”

Section: Introductionmentioning

confidence: 99%

Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

et al. 2019

View full text Add to dashboard Cite

The precise arrangement of metal ions in type and number by a ligand represents an important challenge in biology as well as in materials science. The preorganization of different metal ions such as alkaline-earth and transition-metal ions is of particular interest for the design of catalysts or precursors of oxides. This study is based on a Ω-shaped salen-derived ligand comprising N 2 O 2 and O 2 O 2 coordination sites. The selective binding of Cu(II) and Ni(II) and alkaline-earth-metal ions is influenced by many factors such as the size of the cation, the solvent, or the counterion. UV–vis and 1 H NMR titrations and single-crystal X-ray structures reveal that the obtained complexes tend to adopt different structures in solution compared to the solid state. Mainly discrete motifs with a stoichiometry 1:1 (LM 1 to alkaline-earth-metal ions) have been shown to form in the solid state, whereas in solution, the 2:1 complexes are predominant.

show abstract

Section: Introductionmentioning

confidence: 99%

Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

et al. 2019

View full text Add to dashboard Cite

show abstract

“…In these systems, a first-row transition metal is bound traditionally in the Schiff base/phenolate (κ 4 -N 2 O 2 ) pocket and a second metal occupies a peripheral (κ 4 -O 2 O 2 ) binding site. These complexes have recently been made with divalent s-block metals in the second position [5], but far more examples exist in the literature for heterobimetallic 3d-4f complexes of this type. Choice of lanthanide ion determines applicability; the Gd 3+ ion produces interesting magnetic materials [6], and Eu 3+ produces functional luminescent materials [7].…”

Section: Introductionmentioning

confidence: 99%

Heterobimetallic 3d-4f (Zn/La) {6,6′-Dimethoxy-2,2′-[naphthalene-2,3-diylbis(nitrilomethylidyne)]diphenolato}-pyridylzinc(II)-tris(nitrato-O,O′)lanthanum(III) Monohydrate

Farnsworth

Chaudhary

Zeller

et al. 2017

Molbank

View full text Add to dashboard Cite

show abstract

Linear trinuclear copper(II)-alkali/alkaline earth metal compounds derived from a compartmental ligand

Mandal

Roy

Mondal

et al. 2018

Inorganica Chimica Acta

Self Cite

View full text Add to dashboard Cite

The work in this investigation deals with syntheses, crystal structures and ESI-MS positive of five compounds of composition [(Cu II L)2Na I ](ClO4) (1), [(Cu II L)2K I ](ClO4) (2), [{Cu II L(H2O)}Ca II (Cu II L)](ClO4)2 (3), [(Cu II L)(µ-ClO4)Sr II {Cu II L(MeOH)0.6}](ClO4)•1.2MeOH (4) and [(Cu II L)(µ-ClO4)Ba II {Cu II L(MeOH)}](ClO4)•MeOH (5), where H2L = N,N'-bis(3ethoxysalicylidene)-1,4-butanediamine. The s-block metal ion in all of these five compounds occupies an O8 (four phenoxo and four ethoxy) site provided by two L 2ligands. While Na I , K I and Ca II are eight-coordinated, Sr II and Ba II are nine-coordinated due to additional coordination by an oxygen atom of a bridging perchlorate ligand. In all of 1-5, the two Cu II and M I/II are positioned in almost linear way (Cu II-M I/II-Cu II angle range = 168.24-175.39º). The geometries of the coordination environments have been understood from SHAPE analyses. A disagreement has been observed for the first time between the results of SHAPE analyses and Addison's geometric parameter for the pentacoordinated environment. Some interesting structural features regarding composition, metal-ligand bond lengths and twisting of the aromatic rings have been observed. UV-Vis spectra indicates two d-d absorption of copper(II) centers in each of the five compounds. ESI-MS positive reveals the appearance of some tri/di/mononuclear ions.

show abstract

Syntheses, crystal structures and ESI-MS of mononuclear–dinuclear, trinuclear and dinuclear based one-dimensional copper(II)–s block metal ion complexes derived from a 3-ethoxysalicylaldehyde–diamine ligand

Cited by 8 publications

References 54 publications

Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

Heterobimetallic 3d-4f (Zn/La) {6,6′-Dimethoxy-2,2′-[naphthalene-2,3-diylbis(nitrilomethylidyne)]diphenolato}-pyridylzinc(II)-tris(nitrato-O,O′)lanthanum(III) Monohydrate

Linear trinuclear copper(II)-alkali/alkaline earth metal compounds derived from a compartmental ligand

Contact Info

Product

Resources

About